Islam is the religion of about one-fifth of humanity. The terrorist attacks in September 2001 raised the profile of Islam throughout the world as a subject of analysis and discussion. Muslims living in the West and the Muslim world resented the exposure of their religion. Islam, they argue, is a religion of peace: the word Islam is a verbal noun meaning self-surrender (to God). ‘Islam, Muslims, and Islamism’ looks at what Islam means; considers identity, political ideology, and faith in Islam; and the successes and failures of the Islamic state. What caused the revival of Islamic observance in daily life? What part has information technology had in the renewed strength of Islam?